First off, the bridge makes a nice subject and I like the composition of the second image, except for the person behind the pillar. The bridge is tilted in the first image.
Why did you choose to do HDR? In both images there is a lot of halo around the edges. In the first image, the top center of the roof has lost all details. In the second, the sky looks like a grey blob.
My gut instinct is that niether shot would have really benefited from HDR. I think you could have probably produced great photos with a good raw processing. What does the original middle exposure look like?